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StarInfo/CDFS+/Fix

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Recent acquisitions » Acorn ADFS disks » adfs_AcornUser_199609.adf » Regulars
Filename: StarInfo/CDFS+/Fix
Read OK:
File size: 035E bytes
Load address: 0000
Exec address: 0000
File contents
   10max=32*1024
   20
   30
   40
   50DIM code max
   60REPEAT
   70 INPUT "Enter path of CDFS module (or Shift Drag) : "in$
   71 WHILE RIGHT$(in$,1)=" "
   72  in$=LEFT$(in$)
   73 ENDWHILE
   80 SYS "OS_File",5,in$ TO f,,,,len
   90 ok=TRUE
  100 IF f<>1 PRINT in$;" is not a file":ok=FALSE
  110 IF len>max PRINT in$;" is much larger than expected":ok=FALSE
  120UNTIL ok
  130SYS "OS_File",&FF,in$,code
  140help$=FN0(code+code!&14)
  150PRINT'"Found: ";help$'
  160offset=FNid(help$)
  170IF offset = 0 ERROR 1, "Don't known about this version"
  180IF code!offset =&01A0100A ERROR 1,"Module already fixed"
  190IF code!offset<>&01A0A001 ERROR 1,"Offset does not contain expected value"
  200code!offset = &01A0100A
  210PRINT "MOVEQ r10,r1 changed to MOVEQ r1,r10"'
  220SYS "OS_File",10,in$+"+",&FFD,,code,code+len
  230PRINT "Module saved as ";in$;"+"
  240END
  250:
  260DEF FN0(a)
  270a$=""
  280WHILE ?a<>0
  290 IF ?a>31 a$+=CHR$?a ELSE a$+=" "
  300 a+=1
  310ENDWHILE
  320=a$
  330DEF FNid(h$)
  340IF INSTR(h$,"2.21") THEN = &2F40
  350=0

max=32*1024


(
2� code max
<�
F8 � "Enter path of CDFS module (or Shift Drag) : "in$
G ȕ �in$,1)=" "
H  in$=�in$)
I �
P" ș "OS_File",5,in$ � f,,,,len
Z	 ok=�
d' � f<>1 � in$;" is not a file":ok=�
n9 � len>max � in$;" is much larger than expected":ok=�
x� ok
�ș "OS_File",&FF,in$,code
�help$=�0(code+code!&14)
��'"Found: ";help$'
�offset=�id(help$)
�6� offset = 0 � 1, "Don't known about this version"
�7� code!offset =&01A0100A � 1,"Module already fixed"
�I� code!offset<>&01A0A001 � 1,"Offset does not contain expected value"
�code!offset = &01A0100A
�-� "MOVEQ r10,r1 changed to MOVEQ r1,r10"'
�/ș "OS_File",10,in$+"+",&FFD,,code,code+len
� � "Module saved as ";in$;"+"
��
�:
� �0(a)
	a$=""
ȕ ?a<>0
" � ?a>31 a$+=�?a � a$+=" "
,	 a+=1
6�
@=a$
J
� �id(h$)
T� �h$,"2.21") � = &2F40
^=0
�
00000000  0d 00 0a 0f 6d 61 78 3d  33 32 2a 31 30 32 34 0d  |....max=32*1024.|
00000010  00 14 04 0d 00 1e 04 0d  00 28 04 0d 00 32 0e de  |.........(...2..|
00000020  20 63 6f 64 65 20 6d 61  78 0d 00 3c 05 f5 0d 00  | code max..<....|
00000030  46 38 20 e8 20 22 45 6e  74 65 72 20 70 61 74 68  |F8 . "Enter path|
00000040  20 6f 66 20 43 44 46 53  20 6d 6f 64 75 6c 65 20  | of CDFS module |
00000050  28 6f 72 20 53 68 69 66  74 20 44 72 61 67 29 20  |(or Shift Drag) |
00000060  3a 20 22 69 6e 24 0d 00  47 13 20 c8 95 20 c2 69  |: "in$..G. .. .i|
00000070  6e 24 2c 31 29 3d 22 20  22 0d 00 48 0f 20 20 69  |n$,1)=" "..H.  i|
00000080  6e 24 3d c0 69 6e 24 29  0d 00 49 06 20 ce 0d 00  |n$=.in$)..I. ...|
00000090  50 22 20 c8 99 20 22 4f  53 5f 46 69 6c 65 22 2c  |P" .. "OS_File",|
000000a0  35 2c 69 6e 24 20 b8 20  66 2c 2c 2c 2c 6c 65 6e  |5,in$ . f,,,,len|
000000b0  0d 00 5a 09 20 6f 6b 3d  b9 0d 00 64 27 20 e7 20  |..Z. ok=...d' . |
000000c0  66 3c 3e 31 20 f1 20 69  6e 24 3b 22 20 69 73 20  |f<>1 . in$;" is |
000000d0  6e 6f 74 20 61 20 66 69  6c 65 22 3a 6f 6b 3d a3  |not a file":ok=.|
000000e0  0d 00 6e 39 20 e7 20 6c  65 6e 3e 6d 61 78 20 f1  |..n9 . len>max .|
000000f0  20 69 6e 24 3b 22 20 69  73 20 6d 75 63 68 20 6c  | in$;" is much l|
00000100  61 72 67 65 72 20 74 68  61 6e 20 65 78 70 65 63  |arger than expec|
00000110  74 65 64 22 3a 6f 6b 3d  a3 0d 00 78 08 fd 20 6f  |ted":ok=...x.. o|
00000120  6b 0d 00 82 1d c8 99 20  22 4f 53 5f 46 69 6c 65  |k...... "OS_File|
00000130  22 2c 26 46 46 2c 69 6e  24 2c 63 6f 64 65 0d 00  |",&FF,in$,code..|
00000140  8c 1b 68 65 6c 70 24 3d  a4 30 28 63 6f 64 65 2b  |..help$=.0(code+|
00000150  63 6f 64 65 21 26 31 34  29 0d 00 96 16 f1 27 22  |code!&14).....'"|
00000160  46 6f 75 6e 64 3a 20 22  3b 68 65 6c 70 24 27 0d  |Found: ";help$'.|
00000170  00 a0 15 6f 66 66 73 65  74 3d a4 69 64 28 68 65  |...offset=.id(he|
00000180  6c 70 24 29 0d 00 aa 36  e7 20 6f 66 66 73 65 74  |lp$)...6. offset|
00000190  20 3d 20 30 20 85 20 31  2c 20 22 44 6f 6e 27 74  | = 0 . 1, "Don't|
000001a0  20 6b 6e 6f 77 6e 20 61  62 6f 75 74 20 74 68 69  | known about thi|
000001b0  73 20 76 65 72 73 69 6f  6e 22 0d 00 b4 37 e7 20  |s version"...7. |
000001c0  63 6f 64 65 21 6f 66 66  73 65 74 20 3d 26 30 31  |code!offset =&01|
000001d0  41 30 31 30 30 41 20 85  20 31 2c 22 4d 6f 64 75  |A0100A . 1,"Modu|
000001e0  6c 65 20 61 6c 72 65 61  64 79 20 66 69 78 65 64  |le already fixed|
000001f0  22 0d 00 be 49 e7 20 63  6f 64 65 21 6f 66 66 73  |"...I. code!offs|
00000200  65 74 3c 3e 26 30 31 41  30 41 30 30 31 20 85 20  |et<>&01A0A001 . |
00000210  31 2c 22 4f 66 66 73 65  74 20 64 6f 65 73 20 6e  |1,"Offset does n|
00000220  6f 74 20 63 6f 6e 74 61  69 6e 20 65 78 70 65 63  |ot contain expec|
00000230  74 65 64 20 76 61 6c 75  65 22 0d 00 c8 1b 63 6f  |ted value"....co|
00000240  64 65 21 6f 66 66 73 65  74 20 3d 20 26 30 31 41  |de!offset = &01A|
00000250  30 31 30 30 41 0d 00 d2  2d f1 20 22 4d 4f 56 45  |0100A...-. "MOVE|
00000260  51 20 72 31 30 2c 72 31  20 63 68 61 6e 67 65 64  |Q r10,r1 changed|
00000270  20 74 6f 20 4d 4f 56 45  51 20 72 31 2c 72 31 30  | to MOVEQ r1,r10|
00000280  22 27 0d 00 dc 2f c8 99  20 22 4f 53 5f 46 69 6c  |"'.../.. "OS_Fil|
00000290  65 22 2c 31 30 2c 69 6e  24 2b 22 2b 22 2c 26 46  |e",10,in$+"+",&F|
000002a0  46 44 2c 2c 63 6f 64 65  2c 63 6f 64 65 2b 6c 65  |FD,,code,code+le|
000002b0  6e 0d 00 e6 20 f1 20 22  4d 6f 64 75 6c 65 20 73  |n... . "Module s|
000002c0  61 76 65 64 20 61 73 20  22 3b 69 6e 24 3b 22 2b  |aved as ";in$;"+|
000002d0  22 0d 00 f0 05 e0 0d 00  fa 05 3a 0d 01 04 0b dd  |".........:.....|
000002e0  20 a4 30 28 61 29 0d 01  0e 09 61 24 3d 22 22 0d  | .0(a)....a$="".|
000002f0  01 18 0c c8 95 20 3f 61  3c 3e 30 0d 01 22 1e 20  |..... ?a<>0..". |
00000300  e7 20 3f 61 3e 33 31 20  61 24 2b 3d bd 3f 61 20  |. ?a>31 a$+=.?a |
00000310  8b 20 61 24 2b 3d 22 20  22 0d 01 2c 09 20 61 2b  |. a$+=" "..,. a+|
00000320  3d 31 0d 01 36 05 ce 0d  01 40 07 3d 61 24 0d 01  |=1..6....@.=a$..|
00000330  4a 0d dd 20 a4 69 64 28  68 24 29 0d 01 54 1b e7  |J.. .id(h$)..T..|
00000340  20 a7 68 24 2c 22 32 2e  32 31 22 29 20 8c 20 3d  | .h$,"2.21") . =|
00000350  20 26 32 46 34 30 0d 01  5e 06 3d 30 0d ff        | &2F40..^.=0..|
0000035e